From af9301720443b34ad5ca66e57eb8745a985fdfdc Mon Sep 17 00:00:00 2001
From: Emil Miler <em@0x45.cz>
Date: Sat, 1 Jun 2024 11:53:13 +0200
Subject: [PATCH] Use Docker to invoke ChordPro

This allows us to run Make in a predictable environemnt without having
to install all the perl dependencies. It should work both locally
and during build in the pipeline.
---
 makefile | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/makefile b/makefile
index 4258e48..cf2117e 100644
--- a/makefile
+++ b/makefile
@@ -1,3 +1,9 @@
+ifdef CHORDPRO_PIPELINE
+	CHORDPRO_CMD = chordpro
+else
+	CHORDPRO_CMD = docker run -ti --rm --env HOME=$(HOME) --env USER=$(USER) --workdir $(shell pwd) --volume $(HOME):$(HOME) chordpro/chordpro:latest chordpro --config=chordpro.json 
+endif
+
 SRC_DIR := $(wildcard content/*)
 SRC_EXTENSION := .cho
 
@@ -9,10 +15,10 @@ SONGBOOK := songbook.pdf
 .DEFAULT_GOAL := all
 
 %.pdf: %$(SRC_EXTENSION)
-	chordpro --config=chordpro.json -o $@ $<
+	$(CHORDPRO_CMD) -o $@ $<
 
 %.html: %$(SRC_EXTENSION)
-	chordpro --config=chordpro.json -o $@ $<
+	$(CHORDPRO_CMD) -o $@ $<
 
 all: $(SONG_PDF) $(SONG_HTML) $(SONGBOOK)